CVE-2009-0803

Name: CVE-2009-0803
Creator: NVD / NIST
Published: 2009-03-04T16:30:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.35%

Last modified Jun 16, 2026

CVE-2009-0803 is a vulnerability of currently unknown severity. SmoothWall SmoothGuardian, as used in SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.. EPSS estimates a 2.35% chance of exploitation in the next 30 days.

Description

SmoothWall SmoothGuardian, as used in SmoothWall Firewall, NetworkGuardian, and SchoolGuardian 2008, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.

Metrics

EPSS Probability

2.35%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Smoothwall	Networkguardian	2008
Smoothwall	Schoolguardian	2008
Smoothwall	Smoothguardian	2008

References

http://www.kb.cert.org/vuls/id/435052US Government Resource
http://www.kb.cert.org/vuls/id/MAPG-7M6SM7US Government Resource
http://www.securityfocus.com/bid/33858Vendor Advisory
http://www.kb.cert.org/vuls/id/435052US Government Resource
http://www.kb.cert.org/vuls/id/MAPG-7M6SM7US Government Resource
http://www.securityfocus.com/bid/33858Vendor Advisory

Timeline

Published: Mar 4, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-0803?

How severe is CVE-2009-0803?

Severity scoring for CVE-2009-0803 is pending analysis. The EPSS model estimates a 2.35% probability of exploitation in the next 30 days.

How do I fix CVE-2009-0803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-0803?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST